CVE Tools
Sign in
Back to CVE-2021-22918

How to verify CVE-2021-22918

Confirm whether your systems are actually affected — run the exact detection check below (Nuclei command or OpenVAS NVT). Detection only; it does not exploit.

How to verify this vulnerability

Scanner data tells you how to confirm whether your systems are actually affected — not just that the CVE exists. Run a Nuclei template against your target for a yes/no answer in seconds.

What's a Nuclei template? Nuclei is a free, open-source scanner. A template is a small YAML rule that probes a target and reports whether it's vulnerable. Runs locally, no agent.
1 · AUTOMATEDDetection command
nuclei -t CVE-2021-22918.yaml -u https://your-target -rl 50 -timeout 10

Community template — download the YAML from GitHub first, then run the command against your own host.

1 Nuclei template
  • mediumAI-generatedhttpNode.js Out-of-Bounds Read in uv__idna_toascii()GitHub ↗

Find every CVE you can verify

Search the whole database by Nuclei coverage — filter by vendor, severity and KEV to build a verification list for your entire stack.

  • Filter all CVEs that ship a Nuclei template
  • Combine with vendor, severity & KEV
  • Build a scan list across your stack
Browse verifiable CVEs — Free

This template is on GitHub already — an account lets you search and filter every CVE that has one, not just this CVE.

Nuclei References

Verify with OpenVAS

Greenbone/OpenVAS ships 45 NVT checks for CVE-2021-22918. OpenVAS detects this CVE by NVT OID — enable the NVT in your scan config, or confirm it is in your feed with the query below.

Confirm the NVT is in your feed (GMP)
gvm-cli socket --xml "<get_nvts nvt_oid='1.3.6.1.4.1.25623.1.0.146278' details='1'/>"
NVT OIDs (45)
  • 1.3.6.1.4.1.25623.1.0.146278since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.146280since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.704936since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.844996since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853980since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853985since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853988since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853991since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853992since 2026-06-25
  • 1.3.6.1.4.1.25623.1.0.853994since 2026-06-25

+ 35 more NVTs

New to OpenVAS? Greenbone documentation ↗
Confirmed exposed? That's one CVE on one host.
We check your whole external estate — hundreds of IPs and domains — for this and thousands more, on a schedule.
Scan my estate
Verify another CVE